Cheat mode:
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Enter a safe house and find the mission replay board at the far right side of
it. Use the letter magnets to spell out the following codes to activate the
corresponding cheat function. The letters will return to their original position
and a message will appear at the bottom of the screen to confirm correct code
entry.

Easy money:
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Find a dealer and kill him. He will drop some money for you to pick up. The
money should range from about $30 to $60.

"Store Wars": Easy completion:
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To complete this mission easily, first get a police car and log onto the police
computer. Search for an arson crime (fire making criminals). Do the Vigilante
mission as usual, but when you kill the criminals pick up the flame-throwers.
Start the "Store Wars" mission and quickly park two cars at each end so it makes
it difficult for the vans to get past. Let the vans drive towards you (or you go
towards them). Equip the flame thrower and hold [Fire] for two seconds.
The vans will explode very quickly.

Temporary invincibility:
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Duck and roll. You cannot be harmed while rolling.

Extinguishing yourself:
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When you are on fire, roll to put out the flames.

Go-Kart:
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Go to the bottom right corner of the first island (where Mikhail Faustin's house
is in Grand Theft Auto 4). Go all the way down to the bottom until reaching the
last house, then go three houses to the right. Go into the back garden to find a
Go-Kart. Note: If it does not appear, go to the front door and return and it will
appear if you are at the correct house.